If you buy a red sith crystal from Dok-Ondars, there's a small chance you will receive the rare black kyber crystal. The black crystal will still turn your lightsaber red, but it will react differently with the Holocron's that are also available for purchase at the store ($49.99).

In 2026, the method for obtaining a "Black Kyber Crystal" at Star Wars: Galaxy's Edge remains a game of chance rather than a direct purchase. The black crystal is an extremely rare "chase" variant hidden inside the silver-capped Red Kyber Crystal canisters sold at Savi's Workshop or Dok-Ondar's Den of Antiquities. When you purchase a Red Kyber Crystal for $17.99, there is an estimated 1-in-100 chance that the canister actually contains the black "Obsidian" crystal. You cannot tell from the outside of the packaging which one it is, though many fans attempt to use high-powered flashlights to "peek" through the plastic (a method Disney has tried to thwart with more opaque packaging). The black crystal functions exactly like a red crystal in a custom lightsaber (producing a red blade and Sith voices), but it features a unique slip of paper inside labeled "Black Kyber Crystal" and has a different internal RFID code for the Holocrons. Because of its rarity, it has become a major collector's item, often selling for hundreds of dollars on the secondary market for those who don't want to rely on the "luck of the Force."